Social ray is a platform for professional networking. Its collaboration features include friends and communities, mailboxes, instant messaging (using AJAX), a powerful search engine, document sharing, forums, vanity URLs for users, and rich media support. Its professional networking features include resume uploads, job searching, automatic job matching, testimonials, the ability to post jobs, job referrals, and accounts for recruitment consultants.

PageWork is a wiki that focuses on fast content delivery as well as an expandable and adaptable code library. It explicitly separates the volatile run-time environment of a hosted site from the encapsulated code library, and has the ability to host multiple sites based on the same software. All pages and files undergo revision control of arbitrary depth. In combination with users and groups, access to resources is controlled by ACLs that resemble Unix permissions. Features include tagging, SEO, media and meta data management, comments, breadcrumbs, bookmarks, templates, memos, Atom/RSS feeds, adaptable resource caching, and site-wise and personal customization.

ZTopo is a tool for seamlessly viewing United States Geological Survey topographic maps. It can overlay geographic and UTM grids on maps, supports printing, and transparently downloads maps from the Internet as needed.

Bitcoin is a peer-to-peer electronic cash system that is completely decentralized, without the need for a central server or trusted parties. Users hold the crypto keys to their own money and transact directly with each other, with the help of a P2P network to check for double-spending.

The Building Information Model server (BIMserver) software enables you to host your own BIMserver to centralize the information of any construction (or other building related) project. The core is based on the open standard IFC and therefore knows how to handle IFC data. The BIMserver is nót a fileserver; IFC data are interpreted by a smart EMF e-core and stored in an underlying key-valuestore database (Berkeley). It’s ideal to support your dynamic collaboration process in the AEC sector.

gzochi is a framework for developing massively multiplayer online games. A server container provides services to deployed games, which are written in Guile Scheme, that abstract and simplify some of the most challenging and error-prone aspects of online game development: Concurrency, data persistence, and network communications. A very thin client library can be embedded to provide connectivity for client applications written in any language.